Ooooops that was close!!

[mista_b69]

Been out testing my new Velocity 90 tonite, going well, took the Velocity 55 too as u do, giving it a good pasting then i swear i see sumat fly off, then loads of vibration..... only too land it with half a flybar :/ whoooops!?!?!?!?!? good job i wasnt checking the tracking aye....... bugger.... that was a close one
whoops...jpg

[chris jones2.4]

you wanna do a tail slide then see both paddles fly off

[Sharpedge]

Well done for getting that down in one piece.....ah can you pick out some lotto numbers for me please?

[mista_b69]

Well done for getting that down in one piece.....ah can you pick out some lotto numbers for me please?

hahaha... yh sure lol.... to be fair it wasnt really no different ??? just abit jittery...... it must be hinting to be FBL i think!!! lol...

[tonystevens]

Can i see carbon stiffners on your flybar there?

[Steve]

Can i see carbon stiffners on your flybar there?

I can. Most likely they helped it to break. They stop the flybar from flexing along its length so all the bend is concentrated at the place where it broke - fatigue failure.

Well saved.

[tonystevens]

I can. Most likely they helped it to break. They stop the flybar from flexing along its length so all the bend is concentrated at the place where it broke - fatigue failure.

Well saved.

just what i was thinking steve.

[mista_b69]

just what i was thinking steve.

Yh u both right, dont think I'll use them again... Lesson learnt :/

[tonystevens]

I learnt that lesson too, after seeing various fbl pitch links bending in flight on other peoples helis i put some carbon rod over my pitch links which resulted in all the forces going straight to the ball link which snapped mid flight!

[Steve]

Flybars still break, even without carbon stiffners, but a bit less likely I guess. The flybar twists backwards and forwards with cyclic inputs twice for every blade rotation, so that's 4000 times a minute at 2000rpm. They also carry drag so they lead and lag depending on the dynamics, and most of the bending moment is concentrated just where the flybar exits the cage. Eventually, you get a fatigue failure and it just snaps off. Never had it happen myself, but have seen it. I try to bend the flybar before it snaps!

Flybar stiffeners may well in theory give you sharper control (questionable though), but they also concentrate all the flex at one point on the flybar.

[raptorheli2]

it is a sign!!!! it wants a vbar :-)

cheers